Improved spring bed-bottom



UNITED STATES PATENT OEETCE.

A. MCDANIEL, OF DUBUQUE, IOWA, ASSIGNOR TO HIMSELF AND S. J. HENION, OF THE SAME PLACE.

IMPROVED SPRING BED-BOTTOM.

Specification forming part of Letters Patent No. 81,923, dated September 8, 1868.

To alt whom 'it may concern:

Be it known that I, A. MCDANIEL, of Dubuque, in the county of Dubuque and State of Iowa, have invented a new and useful Improvement in Sprin g Bed-Bottoms; and I do hereby declare that the following is va full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings, forming part of this specification, in which- Figure l represents a plan view of the under side of my improved bed-bottom. Fig. 2 represents a side elevation of the same. Fig. 3 represents an end elevation of the same; and Fig. 4 represents a detail view.

Similar letters of reference indicate like parts.

The object of this invention is to provide a spring bed-bottom of durable and simple construction, and at the same time possessing more exibility and elasticity than many now in use.

It consists in an improved arrangement of the springs and bars.

A represents the base of my improved bedbottom, composed of the cross-rails B and the rods C, arranged as shown, to prevent lateral motion of the said rails. Upon the top of the rails B is arranged a row of conical springs, D, being secured at their base to the rails by staples E, as many as there are intended to be longitudinal rails, which are secured upon the top of the springs, as shown at F, and upon the top of these are arranged the springs L in an inverted position, which are designed to support the mattress, as many as may be conveniently arranged side by side within the length of the rails F, the tops being united by loops of cord or wire, as at G, and the outside rails being united by the straps H to the ends of the rails B, to bind the rails F together in a lateral direction, so that any lateral strain upon any individual rail will be resisted by the whole.

The ends of the springs, which are designed to be secured to the rails, are provided with right-angled projections, designed to be inserted in holes made in the rails for the purpose, the more securely to hold them in place when the staples are driven in; and in some cases I propose to turn the ends of the springs around into the form of a triangle before securing them, as shown at I, Fig. 4, for the purpose of more eiectually preventing them from turning around under the staples.

I propose, also, in constructing the spring, to'wind the last coil at each end on the `mandrels, at right angles to the axis of the same, so as to form 'a true face at both ends of the springs, so that they will stand perpendicular to the surface upon which they rest, and will support the rails resting upon them in a level position.

I also propose to bend the upper ends of the upper springs down, as shown at K, for the purpose of preventing them from catching into the webbing of the mattress.

The rails F may be made of springing stuii' similar to wooden springs, for the purpose of affording a greater amount of springing quality.

I also propose, in the construction and use of my bed, to use in some cases thinner top rails; and in that case, I propose to use the bottom springs under the center of the bed, and use at the ends a wood bearing, fastening the ends ofthe top rails to the Wood bearing, and when thus used the side straps and rods C would not be used.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. The combination and arrangement of the rails B, rods C, spring D, and rails F, provided With the upper springs L, all substantially as and for the purpose set forth.

2. The arrangement of the rails B, rods C, springs D, and rails F, substantially as and for the purpose described.

A. MCDANIEL.

Witnesses:

JOHN B. HENION, AUG. CESAR. 

